Auxiliary support for type-writer shift-frames.



'1'. L. INAH'. man amour ron mnwmm umn mum PPLIULTIGI FILED DBO 37 1001. 904,207. Patented Nov. 17,1908.

IHREN-SISB? l.

T. L. KNAPP. AUXILIABY SUPPORT F02 HPB WRITER BEI?! Fm. APPLIULINI HLBD DBO. I1, H01. 904,207. ,Patented Nov. 17.1908. I IKZBTHIBBI I,

i UNITED STATES PATENT OFFICE.

THERON L. KNAPP, 0F WOODSTOCK, ILLINOIS, ASSIGNOR T0 OLIVER TYPEWRITER COM- PANY, 0F CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

AUXILIARY SUPPORT FOR TYPE-WBITER SHIFT-FRAMES.

Bpeoicninn o! Letters Patent.

Application and ummsv, um. sum No. mae.

Patented Nov. 17, 1908.

To all whom 'it may ccncem:

Be it known that 1, Turnos L. Kxsrr, a citizen of the United States, and a resident of W'oodstock, in the county of McHenry and State of Illinois, have invented certain new and useful Improvements in Auxiliary Supports for Type-Writer Shift-Frames; and I do hereby declare that the following is a full, clear, and exact description thereof, ref` crenre being had to the accom anying drawings, and to the letters of re nce marked thereon, which form a part of this` specification.

This invention relates to a. ty writing ma.- chine shift-frame upon wine the paperearriage is supported and has endwise movement und whic itself has backward and forward sliiftin movement upon the machineframe in orlr to bring the platen and the paper thereon in position to receive im res- .sions from a plurality of types carrie( by each cf the type-bars of the machine.

The invention is more particularly applicable to machines of the Oliver ty e, in which the shift-raine is provided wit two horizontal, transversely arranged guide-bars on which the paper-carriage rests and travels, and in which sind guide-bars project at their ends beyond theshit-frame proper and extend laterally outside of the frame of the machine and are made of suicient length to ro rly su port the carriage, whatever may ne t xe lengtli of the latter.

The ob3ect of the invention is to provide means adapted to niford proper support for said Iride-bars, in machines in which the lengt of the guide-bars is such, as in the case of extra long carria es used for very wide paper, that the gui e-hars cannot well be made suilciently stil or rigid in themselves to revent the same from bending or flexing nm er the weight of the carriage.

The invention consists in the matters hereinafter described and pointed out in the apnended claims.

M invention is shown in the accompan ing rawings in connection with a typewritmg machine of the Oliver type made in accordance wth United States Letters Patent Number 599,863, granted to Thomas Oliver, March 1st., 1898, and United States Letters Patent Number 834.5655, granted to Gross and Griiths, October 30th, 190s.

As shown in said drawings :-Fignre 1 is a View in front elevation of an Oliver typewritin r machine together with a baseboard on w iich the saine rests, together with parts constitutin my invention. Fi 2 is a plan View of te parts shown in i l with the paper-carriage removed to siow the shift-frame and its guide-bars and with the type-bars and associated parts above the level of 4the shit-frame omitted. the sup orting standhrds for the type-bars bein own in section. E" 3 is u view in end e eration on an enlarg scale of the parts shown in F: 1, with certain parts at the right-hand si e of the figure shown in section. Fig. 4 is a detail perspective view of the upper adinstable section of one of the sup rting standards for the ends of the gindbars. F' 5 is n perspective view of one of the oscil atin supporting arms for the said guide bars. ig. 6 is a detail view showing the rear end of the shift-frame guide-rod, and

means for connecting therewith the oblique bruce-rods. Fi 1s a detail section, taken on line 7--7 of ii 1.

As shown in said drawings, 1 indicates the base-plate of the t. pewriting machine, 2 the paper-carriage an 3 the shxfbframe, which 1s supported upon the base-frame so as to have ackward and forward shift-ing movement thereon and is provided with forward and rear, horizontal. transversely extendin lido-bars 4 and 5 on which rest and trave t e grooved sugportino' rollers 6 and 7 on the carriage. Sai shiftrame 3. as shown in the drawings, is supported at its forward ends by means of upright. links S, S pivoted at their lower ends to forwardly projecting arms on the shift-freme and at their upper ends to standards 9, 9 which rise from the haselate and support the horizontal bearing tpel-)bars and associated parte. Said shiftrame is supported at its rear end by means of a horizontal, rearwardly extendin guidestem 11 which is rigidly attacher to the shift-frame and which passes through a lide-standard 12 on the rear part o the se-rame 1 and rests upon a guide-roller 13 mounted in said standard 12. Said guide-stem 11 is provided with stop-nuts 14, 14 adapted for contact with asecond standard 15 which rises from the rear part of the hase-plate 1 forward of the guidestandard 13; said stop-nuts serving to limit the backward and forward movement. of the shift-frame.

ates 10, 10 on which are mounted the 95 In the machine illustrated, the paper-carriage 2 is made of considerable length ln order to receive a very wide sheet of paper and the guide-bars 4 and 5, in order toezroperly sup rt said carriage when mov to the limit of its endwse movement in either direction, are extended a considerable distance bevond or outside of the base-plate 1 at both sides of the machine. For supporting the ends of said guide-bars, so as to prevent the same from bending or flexing under the wei ht of the carriage and hold the said ends of tile guide-bars in alinement with the centra] portions thereof which are dlrectl attached to the shift-frame 3 during the ackward and forward shifting movement of the said shift-frame and the guide-hars, auxilia supports for said guide-bars are pro vi ed as follows: 16 indicates a dat, horizontally arra ved base-board on which rests, centrally, t e base-plate 1 of the machine. Said base-board 16 xs made somewhat longer than the aide-bars 4 and 5. Mounted on said baserd are four auxiliary suprts for sustaining the ends of said guiders. Said snp rts are all alike and are corres nding y lettered in the drawin and a escription of one of them will a p y to all, the parts thereof being lettered a e in the drawin Each of said supiports embraces a stan ard 17 which is riga y attached to and rises from the base-board 16 and is provided with a head 18 having vertically adinstable connection with said standard 17,

and an oscillating supporting arm 19 which is pivotally connected with the end of itsV associated guide-bar at. its upper end and at its lower and has pivotal connection with the adjustable head 18 of the standard 17, in such manner that said supporting arm is adapted to swing backward and forward in a horizontal plane.

The standard 17 consists of a tubular upright bodv portion having at its lower end a horizontal, outwardly extending flan which is secured by screws to the to of e base-board. The upper adjustable d 18 of the standard is provided with a cylindric stem 20 adapted to enter the upper part of the hollow standard 17 and screw-threaded to receive a. nut 21, adapted to rest on the to of the standard 1T and form an adjustab e stop to determine the vertical position of the head 1S. A set-screw 22 is inserted through the side of said standard and bears at its 1n ner end against the stem 19. Said set-screw 22 is inserted through the side of said standard and bears at its inner end against the stem 20. Said set-screw serves to hold the head 1S from movement when adjusted. The head 1S has the form of a dat plate arranged in a vertical plane extending from front to rear with respect to the machine, and is provided with a horizontal upper edge, and is also provided, centrally of said plate, with a. transverse pivot pin 23 which projects from the opposite sides of said head.

The supporting arm 19 has at its lower end an integral cross-head 24 extending from front to rear relatively to the machine and having at its opposite sides depending parallol lugs or flanges 25, 25 separated from each other by a vertical notch or recess of sailicient wldth to receive the upper margin of the head 18. Each of said flanges 25 is provided with a downwardly opening slot 26 adapted to receive and engage one end of the pin 23 when the cross-head 24 is placed in en gagement with said head 18; the parts being so arranged that the supporting arm is free to swing or rock forwa y an backwardly on the standard 17, and is held from shifting thereon horizontally in an direction b the engagement of the slotte tianges wit the head 18 and the pin thereon.

Two upright set-screws 2T, 27 are inserted through screw-threaded a ertures in the ends of the cross-head 24, sai set-screws having their lower ends inpposition vertically above and in bearing contact with the top surface of the head 18 at opposite sides of the bearing in 23, or at the ront and rear of said pin. baid set-screws 2, 27 are provided with jam-nuts 28, 28 by which they may be held or locked from turning when properly adjusted.

,The set-screws 27, 27, arra as described, perform two dtlerent functions. By their vertical adjustment in the crohead they aiord bodily verticaladustmnt of gie su porting arm, as to rin 1e en s of the idebarsmgustaned there ac curately in line with the central arts t ereof. Regardless of the adjustabi ity of said set-screws, their lower ends afford two separated points of contact between the lower end of the oscil' loting arm and the standard which supports it, so t nat, when the upper end of said arm is swung or oscillated, either fol'- wardl or backwardlv from its central )osition, e said arm l swing or rock a out one of said points of contact, and will be thereby bodily lifted when swinging in either direction from its central position.

As a. result of the construction described, therefore, when the u per end of the supporting arm is Swingin orwardly, the arm will rest and turn on t e lower end of the forward set-screw, the rea-most set-screw will rise from contact with the head 18, and the arm itself will be correspondingly lifted. Likewise, when the upper end of the arm is swung rearwardly from its central posit-ion. said arm will swing on the lower end of the rcarmost set-screw, and will be slightly lifted as its said upper end moves rearwardly from its cent-ral position. It wilLof course,be understood that the greater the distance apart of the two set-screws, or the greater the distance apart between the centrally arranged lll.)

maar

in 23 and the set-screws, the greater will be he bodily lifting movement imparted to the supporting arm when the latter is swung or tilted forwardly or backwardly a certain distance from its upright position. The degree of lifting movement so lmparted to the supporting arm will correspond with the lifting movement which, as set forth in said prior patent No. 837,611, is imparted to the forward end of the shift-frame and guide-bars through the swinging movement of the supporti links 8, 8 in the backward and forward s ifting movement of the shift-frame from its central position. From this it will be understood that the lower or contact ends of said set-screws will be located at such distance apart that when the shift-frame is moved or swim forwardly or rearwardly and the upper en of the said supporting ari n and the end of the guide-bar, with which it is connected, is moved to an equal extent, the saidupper end of the supporting arm will be given i-isin movement corresponding with that imparte to the shift-frame by the said oscillatory suspension links 8, 8, and the end of the guide-bar which is sustained by the supporinng arm will he lifted the same extent as is the shift-frame. It follows that the supporting arm, mounted as described, when used in connection with the shift-fiume supported by pivoted suspension links, will not only afford backward and forward movement of the ends of the guide-bar wit the shift-frame to which it is attached, but will also afford sligit rising and falling movement in the en of the said guide-bar, corresponding with the risiand falling movement imparted to the 'ft-frame by said suspension links.

Inasmuch as the rising and falling movement imparted to the en of the guide-bar. as

. above set forth, is due to the contact of the supportin arm with the standard at separated m each other as descri such ris' and falling movement will result regard es of whet er the support' arm be nude vertiisallvr adjustable relative y to its support. Itfollows that so far as the means for giving such rising and falling movement are concerned, the set-screws described constitute no essential part of the structure and mav be omitted.

In order to prevent any bend' of the guide-rods in a orizontal plaineA illinie backward and forward movement of the shiftframe and to thereby insure that the ends of said guide-rods shall exactly partake of ints such movement of said shift-frame I provide oblique brace-rods 30, 30, extending from the rear end of the guide-stem 11 of the shift-frame forwardly to one of said uiderods at points outside of the carriageame. Said oblique brace-rods, as shown in the drawings, extend from the rear end of the guide-stem forward and outwardly in a divergent direction to the forward guide-bar 4, to which ide-bar the forward ends of said brace-ro s 30, 30 are attached at points about midway between sides of the shiftframe propel' and the outer ends of said ide-har. The rear guide-bar Si being coated considerably above the level of the forward guide-bar 4, said brace-rods 30, 30 extend beneath the said rear guide-bar and are substantially horizontal. The employment of the brace-rods 30, 30 in connection with the forward iidc-bar 4 only, serves to revent horizontal tlexure or movement of th guide-bars, because the engagement of the grooved supporting rollers o the carriage with the front and Arear guide-bars serves to maintain the saine in parallel relation, or to insure the movement of the ends of the rear :ide-bar with those of the forward guidenir.

According to the details of construction illustrated, said guide-bars 30, 30 are connected at their rear and forward ends with the guide-stem 11 of the shift-frame and with the forward ide-bar 4, as follows: As clearly seen in ig. 6, a transversely arra yoke ieee 31 is attached centrally to t e rear en of the said aide-stem 11 by means of a screw-threadedgstud 32 on the rear end of said rod, which stud is screwthreaded to en a screw-threaded aperturein the oke-piece. Theends of said yokepiece are t or deflected rearwardly and outwardly and stand at right angles to the rear ends of the said brace-rods 30, 30. The rearwardly bent ends of the yokepiece are apertured to receive the rear en s of the brace-rods, which latter are provided with nuts 33, 33-bctween which the said ends ot the oke-piece are clam ed and by which the race-rods are rigi y secured to said yoke-piece. The forward ends of said bracerods 30, 30 are connected with the forward gi1ide-bar 4 by means of blocks 34, 34 which are 'secured to the under surfaces of and )reject downwardly from said guide-liars.

o the lower faces of said blocks 30,34 the forward ends of the brace-rods are attached by screws, as illustrated in Fig. The said connectin blocks 34, 34 bei attached to the lower sur 'ace of the guidewar are in position to avoid interference with the movement of the supporting rollers of the carriage along the guide-bar, while the ends of the brace-rods are located at a sutlicient die` tance below the guide-bar to prevent contact therewith of the said sup rtin rollers, as the latter travel along t e gui e-bur.

I claim as my invention 1. The combination with a typewritng machine frame, a paper-carriage. a shiftframe having shiftin movement. un the machine frame, said shi t-franie being rovidcd with a guide-bai', and supporting links for the shift-frame, pivotally connected with the machine frame above the level of the shiftframe, of auxiliary supports for the ends of said guide-ber, com rising oscillating supporting arms, and xed members on which said arms are mounted, said supporting arms and fixed members having contacting parts which are horizontally segarated from each othei to afford rising and lling movement in the ends of the ide-bar when said arms are swung fern' y and backwardly from the centi-al position thereof. v

2. The combination with a typewriting machine frame, a paper-carriage, a shiftrame having shiftinfg movement on the inachine frame said shi -rame being roi'ided with a guide-bar, and supporting inks for the shift-frame, pivotally connected with the machine frame above the level of the shiftframe, of auxiliary supports for the ends of said guide-bar, comprising oscillating supporting arms and lixed members on which said arms are supported, said arms being loosely connected with the fixed members by means preventing horizontal shiftinlof arm on said fixed members, and e said arms and fixed members having contacting parts horizontally rated from each other to afford rising and alling movement in the ends of the guide-bar when said arms are swung forwardly or rearwardly from the central position thereof.

3. 'I'he combination with a typewriting machine frame, a paper-carrie and a carriage shift-frame mounted and ving shift ing movement on the machine frame and provided with a guide-bar, of an auxiliary su port for the said guide-bar located outsi e of the machine frame and comprising a fixed standard and an oscillating su rting arm mounted on said standard an iaving both rising and fallin@ movement thereon, said arm being engaged:I at its upper end with the guide-bar.

4. The combination with a typewriting machine frame. a paper-carriave and a shiftiaine mounted and having 'ft' movement on the machine frame, said shi frame being provided with a guide-bar for the carriage, of an auxiliary support for said iidebar comprising a fixed standard provi ed at its top with a vertically adjustable member, and an oscillntin supporting arm, loosely connected at its owcr end with said vertically adjustable member and engaged at its upper end with the guide-bar.

5. An auxiliary support for the end of a shift-frame guide-bar, comprising a tubular standard, a head provided with a stein which extends within and has vertically adjnstable connection with the standard, and au oscillating ezmlm-ting arm loosely mounted on said h 6. An auxiliary support for a shift-frame froide-bar, comprising a tubular standard, a head provided with a stem which enters said -means holdin the lower en standard, an adjustable stop on the stem, adapted to rest on the top of the standard, clamping means for lioldmg the stein from movement in the standard, and an oscillating supportin arm loosely connected at. its lower end wit i the said head.

7. Ali auxiliary support for a shift-freine guide-bar, com rising an oscillating supporting arm an a ilat, vertically arranged plate on which said arm is mounted, said plate being provided with a. horizontal pin extendi transversely thereof, and the lower en of the supporting arm being roiided with a crossliead having depen ing flanges which extend at opposite sides of the plate, and are provided with vertical slots for engagement with said pin.

S. An auxiliary support for a shift-frame guide-bar, com rising an oscillating supporting arm an a dat, vertically arranged plate on which said arm is mounted` said plate bein provided with a pin, extendin transve y thereof, and the lower end o the supporting 'arm bein provided with a cross-head having de en in flanges which extend at op osite si es of te late and are provided wit vertically exten ng slots for engagement with said pin, and set-screws inserted through the ends of said cross-head and adapted for contact with the upper edge of said plate.

9. An auxiliary support for a shift-frame guide-bar, comprising an oscillating supporting arm, a suppo member on which said arm is mounted, sai arm being loosely connected with the supportin member by of the arm from shifiin iorizoutally on the plate, and two vertical y arranged, horizontally sepa rated set-screws inserted in one of said parts and adapted for contact with the other pax-t to give rising and falling movement to the upper end of said supporting arm when swung forwardly or rearwardly from its central tion.

10. e combination with a typewi'iting machine frame, a paper-carriage and a cai'- riage shift-frame mounted and having shift ing movement on the machine frame, said shift-frame being provided with a carriage guide-bai', of auxiliary supports for the ends of the guide-bar. located outside of the carringe-frame, and oblique brace-rods attached to the rear end of the shift-frame and to the said guide-bar.

11. The combination with a typewriting machine frame. a paper-carrie e and a shiftframe mounted and having s ifting movemachine frame a paper-carrie. e and ar shiftthe shift frame guide stem forwardly and frame mounted and having s 'ftin moveoutwardly to the 'de-bar. ment on the machine frame, said shi frame In testimony, t t I claim the foregoing be' provided with a rearward! extendin as my invention I aix my signature m the :E 5 gui e-stem and with atrnilsve y arran Bresence of two witnesses, this 23rd day of ciali-ria e glidebar, gf uxllliaryesxpport fo; ecember A. D. 1907. teen so sai ie-ar ocat outsi eo tlle machine frallela and pi'ovidd zvlthpscil- W THERON L' KNAPP ting supportm' arms en g a. ieu' upitnesses: 1o ends with t e guidear, and oblique E. R. Hor,

race-rods extending from the rear end'of L. L. Sennommn. 

